// Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.android.datatransport.runtime.retries;

import androidx.annotation.Nullable;

public interface RetryStrategy<TInput, TResult> {
  /**
   * Whether a function call should be retried with a new input.
   *
   * <p>Given an input and result of a function call, return a new input to cause call to be
   * retried, returning null will prevent further retries.
   */
  @Nullable
  TInput shouldRetry(TInput input, TResult result);
}
